Adapter



Patented Oct. 23, 1934 ums STATES ADAPTER -William M. Gentle, Los Angeles, Calif., Lawrence F. Searson,

of one-half to Ill.

assigner Chicago,

i Application October 15, 1929, Serial No. 399,739 Y 2 Claims.

This invention relatesrto means for making a detachable connection between a container hav-V ing lubricant therein under pressure and the inlet end of a substantially cylindrical nipple so that the lubricant can be transferred in suitable quantities from the container to the nipple, and the principal object is to provide an adapter at the discharge end of the connection that can be easily and expeditiously attached to or removed from a nipple by simply moving it endwise to or from the nipple. To that end I provide an adapter having spring arms at its discharge end with clutch members arranged to grip the nipple when by a single movement the adapter is l5 moved endwise toward it so as to hold the adapter on the nipple While the latter is being charged with lubricant, and the adapter is removed from the nipple by a single movement endWise from the nipple.

Another object of the invention is to provide an adapter Vwith a simple and eicient Vmeans for detachably connecting it to the extended ends of a nipple cross pin. To that end I detachably secure spring arms at the discharge end of the "5 adapter that are spaced a slight distance apart With a plurality of oppositely arranged notches in their adjacent edges that are Vadapted to receive the extended ends of the cross pin to aid in holding the adapter on nipples having cross pins 0 or like projections-While they are being charged with lubricant. The. adapter is detached by simply pulling itY endWise from the nipple until the notches of the spring arms are released fromthe extended ends of the cross pin.

i Another object of the invention is tov provide a simple manually operablemeansfor forcing the clutch members .of the spring arms into locked engagement with thebody of a cylindrical nipple* so thatthe adapter cannot be disengaged uni til the clutch members are released by the manuallyoperable means.

V.A feature of invention is shown in the construction and arrangementof a hollow sleeve slidably mounted in'the discharge end ofthe adapter that is arranged to engage the' inlet end of a nipple when the 4adapter is attached and placed under Athe tension of a spring so as to form a tight ,connection between the' ends of the sleeve and nipple to prevent the lubricant from escaping between the abuttingends when theV lubricant is driven through the adapter into the nipple.

Features of invention are shown in the construction, combination and arrangement of parts whereby an adapter is provided that is easy to construct, assemble and operate, that is neat and pleasing in appearance and effective and durable in use.

Other objects, advantages and features of invention may appear from the accompanyingdrawing, the subjoined detailed description and "50. the appended claims. v

The accompanying vdrawing illustrates the invention. y

Figure 1 is a perspective view of an adapter constructed in accordance with this invention showing it detachably secured to a nipple ready to charge it with lubricant; also showing a portion of the flexible hose by which the adapter is connected to a grease gun not shown, .l parts shown about actual size.

Fig. 2 is a central longitudinal section on the line 2 2, Fig. 1.

Fig. 3 is a cross section on line 3-3, Fig. 2, showing the spring arms and sliding sleeve in section and also showing the clutch members engaging the cylindrical nipple and the cross pin of the nipple extended into notches between the spring arms so as to aid in holding the adapter on the nipple while being charged with lubricant.

Fig. 4 is a view analogous to Fig. 1 showing the inlet end of the adapter body enlarged and externally threaded for a knurled handle that carries a chuck that is adapted to drive the clutch members into locked engagement with the cylindrical nipple.

Fig. 5 is a central `longitudinal section on line 5 5, Fig. 4.

Fig. 6 is a view of the threaded' end of the knurled handle detached from the adapter.

Fig. 7 is a section on line 7-7,'Fig. 6, showing the detailed construction of the knurled handle andfits chuck end. A

Fig. 8 is` an end view of the handle showing its chuck end. Y

Fig. 9 is an end View of the inlet end of the hollow body detached from the other parts of the adapter.

Fig. 10 is a central longitudinal section on line 10-10, Fig. V9, showing the detailed construction 100 volf the body.

'Fig. 11 is an end view of the discharge end of the body.

Fig. 12 is a perspective View of the nipple clutching means detached from the body.

Fig. 13 is a section on the line 13, 13, Fig. 12, showing the detailed construction of the clutch body and its integral spring arms andjclutch members. o

` moved =fromithe body@ l' f i Fig. 15 is Aanvienv analogous 2 f i i eig 14 is-an 1end View; of the Fig. 15 is a section on une' 15;,"15,'r"ig.14.f j'y the' ,lower .part in section and falso., showing the l y f i l Tieadapteriincludes a hollowy body:

' i 'preferably the latter. i Tasmanie-2v is pr' l vvith va cross pini havingr extendedrends'z i 'the center of the pin supports af spring (threaded stem-26g. g'rne-,sw

f hose'tcthe adapter wreed.' ein; its' @X18 was te aranss'itfmarrarer;

it to a nippieev or; minnie V2v;

fthe vraclaptei-Ir on'y they .nipple- .withouty the,y aid; f extensions, pins; `proiectionsor yindentations pressure or the hose; can

gun. The; container and; grease 'gungare the art sind: for that reasonare i -tlrnvi1f1e-y i 1 bearingl22;y that f btfga-Pliigfn to the. loodvbv .a .e

the' housing being cfonnje ed wel con is Lto permit; I A' I l position to fccnnectl f tended a considerable distance beyondthet pered. I 'f end ofi the body by a spring 33? thatf'has one end s'e'atecll "onA a notched nange 'sleeve'r and the other end l engaged? with t stem 26. i

` If desired the extended end of the s leeve 32 can be provided with a soft rubber tip 132 as shown in Figs. 15 and 16.

The spring 33 normally holds Vthe flange 34 seatedon a packing-ring 35 seated on the shoulder 36 on the interior of the body, andthe smooth tight sliding nt of the sleeve inr the end bore Yof .the body together with the packing ring prevents leakage oi. the lubricant from'the adapter around the sleeve. f f f AThe sleeve 32 is arranged so that'its'extended end abuttingly engages the inlet end of the'nipple 27 so as to form a tight connectionbetween the parts so that lubricant under pressure can be discharged' through the sleeve intov the nipple Without Waste. "Y I The adapter is detachably connected to a nipple by means of clutch members 31 that are'integral with the free end of spring arms 38'.A These arms have their other ends integral with an armcarrier band 39 that is internally threaded so -itcan be secured to the body 20 adjacent its discharge end. t

The arms 38 are spaced a slight distance apart and arranged parallel with the bodye and on the adjacent edges of the arm I provide a plurality of registering notches 40 that are arranged to snap over the extended ends 28 of the crosse-pin and aid the clutch members in holding .the adapter detachably secured to the nipple; The iree ends of the arms are tapered from their .edges towardrtheir centers so as to'forrn guides'y 41 for centering the slots or spaces 42 between the arms over the extended ends 28 of the cross pin; and

slidingr sleeve re;-

nipple :withoutacross pin. cylindrical normaly holds a'ball check valve 3D1 fin .position f Ito gclose'the inlet, passage to .the nippley Preferso' amv the Hippie 27 :is cylindrical' eine formed with-g outr exterior prejections,y as s'hownfin.Figs;16.

*if une rdischarge `of thefbedyjZQ is tapered; f j v fand provided .with a smooth center bore '331 inj iwhiehthe hollow sleeve .3

2 ,is 'slidingly ntted.y sleeve nrntrnally ih as Vits discharge; end ex-iA s4; integral with? the i `alsothe-clutchmembers3T? have their bottom the nippleu 1 f clutch -r'nember's 3"?r sof thatr outwardly against :the

. se that 'they crutch the to hold the adapterin place `on nipple with sunicientforce out; am of? the; locking.y means vcharged withr lubricant;

-f1 y{ gto' the adapter' showny j and'y 16,y and psimwn-inriga 4.

enfermeras@- ging the cain 'to jforce the c'lutch members finto withthe nipple( The tail in'rFigs i1? i canr have a surfacewthou i dentaticns or proj actions, as the clutch member Slime@ inw@ Cm,y am adequa'e E 12'? :asl Ashown nr de 'smooth exterior cylindrical @jing detail the; nipple 1251 lindrical bcdy having its inlet endl closed with its? vsnrimr 'by' ma'ns. Wen; understood iterior portion of the body the adapter .is attached..

In :thefxneans' lfor 'lockingy the.y y the i cylindrical buclyf lof .the nfipple i257; or 12 jI; provide thef clutch members with integral cam l 147i that are adapted 'to' biel engaged :byi a .chuckv handle 49 that has its other inner end portion 50 internally threaded to nt the external threaded portion 51 of the cylinder 2O so Ythat ywhen the handle is' rotated on its longitudinal axis it will move the chuck 48 toward or from the cams. When the Ychuck 48 is actuated so as to engage the'cams '47 and force the clutch members 37 ltoward one another to grip the cylindrical nipple sufficient force can be applied throughV the handle"to lock the adapter on the nipple so it cannot vbe displaced' until manually released byV a reversemovement Vof the handle.

In operation the adapter is moved into aposition in which it is axially aligned with a nipple and then vforced endwise until the clutch members''l engage and grip the body of the nipple tohold Vthe adapter thereon while the'nipple is charged with lubricant,v after which-theadapter endstapered'outwardiyss as-to-formjguidessf y f toffacilitatesliding the-clutch rmembers 3'? ontol .toriashowrl'wth the, nipple with-j l hile -it is being l'The. foregoing description- :applies particular` injFigs.-1,;2,l3.i "s also descriptive of@y the adapter to; 1 5 -inolusiveg except in itheflatter I ,haveiaddedfcarnjsurfaces'tothefWfl provided-y ;meansiorj yenn l i is removed from the nipple by pulling it endwise j in a reverse direction. As the adapter is moved endwse to grip the nipple the 'di'scharge'end of the sleeve 32 will contact with 'the inlet end of the nippleand by pressure of the spring 33 will be held tightly over the inlet tothe nipple so that the lubricant can not escape between the sleeve and nipple while the latter is being lled.' If desired the sleeve 32 can be provided .with a soft rubber tip 132'that will aid in forming Aa tight abutting fit between the sleeve and nipple.

VI claim as my invention: Q

1.v In an adapter'the combination, of a hollow lcylinder'having its inlet end connected to the discharge end of a hosev through which lubrican/ 45 supported; onA the j j end lof anyinne'r tube 45 that? is `securg'edzini plane l f l in the art.A The ex-f clutch members can more effectively grip it when is forced by pressure, a cylindrical nipple, a sleeve slidably mounted in the discharge end lof said cylinder, a spring for normally holding said sleeve extended from said cylinder so it can be abuttngly engaged with the inlet end of said nipple so as to make a tight connection between the ends of said sleeve and nipple, a clutch carrier band secured to said cylinder, spring arms integral with said band, clutch members integral with the free ends of said arms arranged to engage the peripheral surface of said nipple, and a, handle screw mounted on said cylinder for detachably holding said clutch members engaged with said nipple so as to hold said adapter in 

